Yerkes Observatory Buildings, Instruments, Equipment, Grounds
| Title | Yerkes Observatory Buildings, Instruments, Equipment, Grounds |
| View | Room 33 33:1709 (2008-003) |
| Series | VI: Yerkes Observatory |
| Description | Astronomer John A. Parkhurst and assistant Anna Greenleaf Parkhurst work in Yerkes Observatory' Room 33 at with an apparatus for calibrating photometer wedges by rotating sector. |
| Subject Terms | Parkhurst, John Adelbert, 1861-1925 | Parkhurst, Anna Greenleaf | Assistants | Photometers | Astronomical instruments | Calibration |
| Photographer | Blakslee, George C., 1861-1941 |
| Photograph Date | 1923-12-26 |
| Physical Format | Glass plate negatives; 19.0 x 24.6 cm |
| Location | 373 West Geneva Street | Williams Bay, Wisconsin |
| Campus Grid | Y01 |
| Collection | Archival Photographic Files |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf6-00917 |
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